<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        姓：<input type="text" v-model="preName">
        <br>
        名：<input type="text" v-model="overName">
        <br>
        全名：{{ preName }}-{{ overName }}
    </div>
    <script src="../vuejs/vue.js"></script>
    <script>
        const vm = new Vue({
            el : '#app',
            data() {
                return {
                    preName : '',
                    overName : ''
                }
            },
            methods: {
                
            },
        })
    </script>
</body>
</html>